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Systematic review: antihypertensive drug therapy in black patients.
DATA SYNTHESIS: The efficacy of beta-blockers in reducing systolic blood pressure and the efficacy of angiotensin-converting enzyme inhibitors in achieving diastolic blood pressure goals did not significantly differ from that of placebo (weighted mean difference for beta-blockers, -3.53 mm Hg [95% CI, -7.51 to 0.45 mm Hg]; relative risk for angiotensin-converting enzyme inhibitors, 1.35 [CI, 0.81 to 2.26])